Artificial letters added to the four natural DNA bases

Two artificial DNA “letters” that are accurately and efficiently replicated by a natural enzyme have been created by US researchers. Adding the two artificial building blocks to the four that naturally comprise DNA could allow wildly different kinds of genetic engineering, they say. This combines with the previous articles about using DNA to assemble millions …

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DNA used to assemble and glue a 3D structure of one million 15 nm gold nanoparticles

DNA was used to build a three-dimensional structure out of 15 nanometer gold nanoparticles. The gold nanoparticles are the bricks and the DNA is scaffold and mortar. Three-dimensional nanoparticle arrays are likely to be the foundation of future optical and electronic materials. The novel part of the work is that the researchers use DNA to …

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SpaceX progress to Falcon 9

SpaceX tested two Merlin 1C engines operated at full power while attached to a rocket that was strapped to the launch pad. SpaceX offers the possibility of more inexpensive US rockets and a possible replacement for the Space shuttle in 2010. UPDATE Spacex is trying to successfully launched the first Falcon 9 on June 4, …

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Nanofibers in complex shapes and unlimited lengths

The continuous fabrication of complex, three-dimensional nanoscale structures and the ability to grow individual nanowires of unlimited length are now possible with a process developed by researchers at the University of Illinois. Based on the rapid evaporation of solvent from simple “inks,” the process has been used to fabricate freestanding nanofibers, stacked arrays of nanofibers …

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Progress to artificial gecko like wall climbing for people

Researchers at the University of California, Berkeley, have developed an adhesive that is the first to master the easy attach and easy release of the reptile’s padded feet. The material could prove useful for a range of products, from climbing equipment to medical devices. One of my predictions from 2006 was that there would be …

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Another step closer to large scale graphene electronics

Researchers from University of Wollongong, New South Wales have a new and better way of separating graphene sheets. Their process allows sheets to be kept apart in aqueous solution by electrostatic repulsion alone – without the need for chemical stabilizers. Graphene sheets have an extremely large surface area and non-bonding interactions can cause the sheets …

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Bakken oil field is highly profitable for Petrobank

Besides EOR Resources there are other players developing the Bakken oil resource. The economics are attractive in the Bakken play. At least four wells per section can be drilled. Drilling and completion costs are approximately $1.7 million per well, and according to our independent reserve evaluator, proved plus probable reserves are 100,000 barrels of oil …

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Carbon nanotube based drug could be 5000 times more effective for acute radiation treatment

A carbon nanotube based drug has had preliminary tests showing it is more than 5,000 times more effective at reducing the effects of acute radiation injury than the most effective drugs currently available. There were already results that gene therapy can increase resistance to radiation. “More than half of those who suffer acute radiation injury …

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New polymer for lower cost computer chips and compatible with lithography and nanoimprinting

Researchers at Rensselaer Polytechnic Institute and Polyset Company have developed a new inexpensive, quick-drying polymer that could lead to dramatic cost savings and efficiency gains in semiconductor manufacturing and computer chip packaging. The compatibility with lithography (the current process for making computer chips) and nanoimprinting (a likely future method of computer chip making with smaller …

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